constructing r-charts

Question # 00722618 Posted By: lkalb610 Updated on: 04/29/2019 07:46 PM Due on: 04/29/2019
Subject Statistics Topic Data Analysis Tutorials:
Question
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Jim, a quality control manager at an apparel manufacturing company, studies and monitors quality using R-charts. He discovers a quality problem with the construction of zippers. Jim proposes that 25 samples of eight observations each be collected on a daily basis. He plans to prepare an R-chart to monitor the variation in the size of the zippers. The data collected shows that the mean length of the zippers is 15 inches and the average range is 0.5 inches. If D 3 for the R-chart is 0.136, the lower control limit (LCL R) for the R-chart will be:

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Tutorials for this Question
  1. Tutorial # 00760980 Posted By: dr.tony Posted on: 05/08/2020 01:19 PM
    Puchased By: 2
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    The solution of constructing r-charts...
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    constructing_r-charts.ZIP (18.96 KB)

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